package com.jun.wj.utils;

import java.util.Random;

public class StringUtils {

    public  static  String getRandomString(int length){
        String base = "abcdefghijklmnopqrstuvwxyz0123456789";
        Random random = new Random();
        StringBuffer sb  = new StringBuffer();
        for(int i=0;i<length;i++){
            int number = random.nextInt(base.length());
            sb.append(base.charAt(number));
        }
        return sb.toString();
    }
}
